Safety gas regulator



Feb. 10, 1925.

T. D. YOUNG SAFETY GAS REGULATOR Filed June 11 f 1924 atto: n eq Parenteel Feb. 1o, 1925.

TELFO'RD D. YOUNG, or coLUMBUs, OHIO,

`ASSIGNOIR. F ONE-HALF TO WILLIAM R.

WEAKLEY, OF-CO'LUMBUS, OHIO.

SAFETY GAS Appncauon meditare 11,

ToaZZ wlw/ny it may concern.:

Be it known that I, Tnnrionn D. YOUNG, a citizenot the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented new and use :tul Improvements in Safety Gas Regulators, of which the following is a specification.

The present invention is directed to improvements in safety gas regulators` The primary objectct the invention is to provide a device of this character so constructed that it will not only regulate the i'iow of gas but will positively cut otf the flow thereof when .the pressure in the main supply is removed. f

" i further object ot' the invention .is to provide a device of this type which is eX- tremely `sensitive and positive in operation, andone which is simple in constructionand can be manufactured at avery small cost.

A. still further object of the invention `is to provide a regulator of thiskind particularly designed for householduse, but not necessarily limited to such use, the construction being such that should the supply of gas in the main cease, further flow of gas to gas burners of illuminating fixtures, gas stoves or -furnaces will be positively stopped, thus eliminating `the possibility of :zo gas filling rooms, stoves or furnaces when the pressure is renewed, which occurrence often resulting fin dangerous explosions and asphyxiation of the occupants o1 the dwelling. e.

I wish `it understood that thedisclosure is `illustrativeonly and thatfthe principle ot' my invention can "be embodied in constructions other than the one.` specified herein.

In the accompanying drawing f Figure 1 is a vertical sectional view partly in elevation.

Figure 2 is a sectional view on lino 2 2 of Figure 1.

Referring to the drawing 1 designates a casing, preferably circular in cross section and comprising upper and lower sections 2 and 3, respectively, the former having a topr closure al., while the latter is provided so with a base plate 5.

The section 3 is provided with an intermediate gas inlet 6 which communicates' with the chamber 7, said chamber having formed in its bottom a conical valve seat Dfi 8 which is provided with a plurality of REGULATOR.

1924. `Serial No. 719,451.

ports 9, and co-operative with said seat is a conical valve 10, the stem'll of which being slidable in the tubular guide 12 which depends from the valve seat 8. This stem has threaded in its lower end a headed coupling pin 13, the purpose of which will. appear later.

Clamped between the respective securing flanges 14 of the sections 2 and 3 is the `periphery ot' the diaphragm 15, which is formed from any materialV suitable for the purpose and to the center thereol:l is suitably lixed .the upper end of the hollow rod 16, said rod being slidable in the verti cally spaced guide bands 16 carried by the adjacent end of the chamber 7. The lower end-of this rodwhas threaded therein a headed coupling pin 17 for slidably and looselyengaging the slot 18 formed adjacent the inner end of the horizontally dis posed lever 19, the outer end of said lever being pivotally connected to the bracket 20 supported interiorly ofthe lower section 3. This lever is also `provided with a slot 21 with which the pin 13 co-operates.

The top 4 is provided with an interiorly threaded boss 22 in which is threaded the tube 23, there being a jam nut24e`on the tube and co-acting with the bossto hold the tube in proper adjusted positions. The t lower end of the tube is provided with an annular inturned flange 25 tor limiting the downward movement of the 'ball 26 carried by the upper end of the pin 27, `said pin having its lower end threaded in the upper end of the rod 16. The top is further pro# .vided with a' normally open valve 28, and

leadingtherefrom is a pipe 29y which eX- tends to the outside of the building to permit the escape ot any which might from accidental causes enter the casing above the diaphragm 15. e

The lower section 3 is provided with an outlet 30, which is disposed diametrically opposite the inlet G and from which the gas is piped to its point ot use.

As shown in` the drawing the valve 10 is seated, thereby cutting ott the iow of gas from the maincasing to the outlet 30, and in order to unseat the valve the hand Wheel 31 lixed to the upper end of the tube 23 is rotated in a direction to elevate the tube and since the flange 25 engages the ball 26 the elevation of the tube will move the rod 16 upwardly and consequently the lll-3 lever 1:9' willx be rocked, thereby raising the valve to; an unseated, position. In, this. man.- ner the gas from the main may be letu into the lower section of the Casing for use., It will' be understood that as long as the. gas. flows, its pressure, even though varying, will' act upon the diaphragm 15 to, keep; the

valve unseated, but as soon as the pressure ceases in the main the valve will, be automatically seated and remain thus until unseated, as hereinbeforedescribed.v A screw 32 is engaged in the bottom or base plate and in cases wherein the tube 231 is inaccessible, this.4 screw may be operated to elevate the lever 19 which cany be readily accomplishedy sinceI the upper endf o-f the same engages the pin 18. After the tube 23 or screw 32 has been manipulated to positively unse-at the valvev they are adjusted to their normal positions to assure automatic operation of the device.

The upward movement of the tube 231, can be limited in any suitable manner; to prevent injury to the, diaph agm. Should the diaphragm become defective and permit gas to pass thereby the valve 28 may be closed until a new" one is installed, it beingof course necessary under such conditions that the tube 23 be elevated in order to. hold the valve unseated.

that is claimed is:

l. A device of the class described comprising a casing, a diaphragm located in the casing, said casing having an inlet and outlet, a. chamber in communication with the inlet and having a valve seat, guide bands carried by the chamber, a valve co-operative with the seat for controlling the flow of fluid from the inlet to the outlet, a lever connected with. the valve and pivotally supported by the casing, and a rod slidably engaged in the guide bands and having its ends connected, respectively, with the diaphragm and lever.

2. A device of the class described compr-ising a casing having` an inlet and a chamber in communication with the inlet, a valve seat in the chamber, a valve for the seat, a lever having one end pivotally connected to the casing and connected intermediate its ends with the valve, a diaphragm mounted in the casing, a rod connectingI the free end of the lever and the diaphragm, and means adjustably supported by the casing for actuating the rod, as and for the purpose set forth.

3. A device of the class described comprising a casing having a fluid inlet and outlet, a chamber provided with a valve seat located in the casing, a valve co-operative with the seat for controlling the flow of Huid from the chamber to the casing and outlet, guide bands carried by one end of the chamber, ailever having one end pivotally connected to the casing and connected intermediate its ends with the valve, a diaphragm operable in the casing, a rod slidable in the guide bands and having its upper end secured to the diaphragm and its lower end pivotally connected with the free end of the lever, said lever and rod serving to control the movement of the valve with respect to the seat upon actuation of the diaphragm by fluid pressure, and independent adjustable means for lift-ing the valve when the fluid pressure ceases to act upon the diaphragm.

4. AA device of the class described comprising a casing having a fluid inlet and outlet, a chamber located in the casing and having a valve seat, a valve co-operative with the seat for controlling the flow of fluid from the chamber to the casing and outlet, said chamber having guide bands carried thereby, a lever pivotally supported in the casing and connected with the valve, a diaphragm mounted in the casing, a rod slidable in the guide bands and having its upper end secured to the diaphragm and its lower end pivotally connected with the lever, said lever and rod serving to control the movement of the valve with respect to the seat upon actuation of the diaphragm by fluid pressure, a tube adjustably supported by the top of the casing and having a. sliding connection with the rod, said tube when moved vertically in an upward direction acting to lift the rod and thus the valve from its seat through the medium of said lever.

In testimony whereof I have hereunto set my hand.

TELFORD D. YOUNG, 

